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4.3 Outdoor unit basement
1)Advantages of a strong and correct basement :
①Outdoor unit won't subside
②Outdoor unit won't generate abnormal noise caused by improper
basement.
2)Basement types
①Steel-frame basement
②Concrete basement(See Fig.4-6 for common practice)
Outdoor unit
Φ10 expansion bolt
Rubber anti-vibration
mounting
Solid ground
or roof
≥150mm
Points of making a basement:
①Host unit basement should be made in strong concrete ground,
See Fig 3.6 for common practice or start after field measurement
②The basement should be completely horizontal and make sure all
the contactors can contact symmetrically.
③Ensure the the basement supports the vertical foldings of the front
and back bottom plates directly, since its the actual bearing place.
④Macadam base is unnecessary. But cocrete surface should be
roughed. The proportions used in mixing the concrete should be
cement 1/sand 2/ pebble 4, including Φ10reinforced rebar. Even
the surface of concrete. The edge of the basement should be
chamfered.
⑤Drainage ditch should be arranged around the basement in order
to drainage water around the unit.
⑥Please check endurance of the roof to ensure loading capacity
could bear the weight.
4.5 Pipe connection
4.4 Dimension(Unit: mm)
Concrete
foundation
Fig.4-6
Needle valve(Pressure inspection
and refrigerant adding)
6
C
A
B
Size
A
Model
33.5kW/40kW
175
45kW
225
Gas side
Liquid side
Liquid side pipe
Connecting pipe
(Accessory)
Fig.4-7
505
Fig.4-8
Table 4-1
B
C
505
1360
555
1460
Through-pipe hole
Through-wire hole
Fig.4-9
V.2
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